^I am quite biased since lovelyz is my second favorite group after apink. Their vocal line is quite strong and the other members are not bad either. Depends on whether you like cute concepts though. Woolim has been very safe with the concepts and for you is the first time they are different.

The talent is there but the concept is going to be very different from the groups you listed since I dont see them changing the formula at least until yein is 18.The solo stages in the mini concert showed a lot of what they can do vocally.